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PxrImagePlaneFilter is used to render an image plate for in-render compositing. It can be used in conjunction with the holdout workflow to render 3d composite 3D elements onto 2d 2D plates.
A file path to the film plate texture image plane texture.
Texture images should be made with mode black and resize up.
PxrImagePlaneFilter expects the input texture to be a camera projection, not a Lat Long environment map. You must first bake out a 2D projection of your environment map if you wish to use it as your film plate.